SoleChem

Benzimidazole

CAS 51-17-2
EC 200-081-4
Formula C7H6N2
MW 118.14 g/mol
Heterocyclic Compounds Pharmaceuticals & HealthcareAgriculture & FeedBiotechnology & Life SciencesWater Treatment Preservation & BiocideCatalysis

Description

Benzimidazole (CAS 51-17-2, EC 200-081-4, formula C7H6N2) is a bicyclic organic compound also known as azindole, benzoglyoxaline, and 1,3-diazaindene. It carries no assigned E-code. The fused benzene-imidazole ring system gives it a stable aromatic structure that underpins its reactivity across multiple industrial sectors.

In pharmaceutical synthesis, benzimidazole serves as a core scaffold for active ingredients including antifungal and antiparasitic compounds, where the nitrogen atoms coordinate with biological targets to disrupt enzyme function. In water treatment and agricultural formulations, it acts as a biocide by interfering with microbial cell replication. It also functions as a catalyst or ligand in organometallic reactions.

Benzimidazole is supplied as a crystalline powder meeting pharmaceutical-grade specifications aligned with Ph.Eur. and REACH compliance requirements. It is available for procurement in standard laboratory quantities through to bulk industrial packaging. Buyers should confirm grade suitability and SDS documentation prior to ordering.

Physical Properties

Melting Point 170.5 °C
Boiling Point >360 °C
Density 1.227 g/cm³
Flash Point 360°C
Appearance white crystals
Color Beige to brown
Form Crystalline Powder or Crystals
Water Solubility sparingly soluble
Refractive Index 1.5500 (estimate)
Log P 1.320

Safety & Handling (Learn More)

Warning GHS07
H
H302
P
P264P270P330P501P301+P317

Trade & Regulatory

HS Code 29339990
Storage Class 11 - Combustible Solids
WGK (Germany) 3

Other Names

1H-benzimidazoleAzindole3-AzaindoleBenziminazoleo-Benzimidazole1,3-DiazaindeneBenzoglyoxaline

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